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Mercury - Mercruiser (MW)
866340K01

Mercury 866340K01 Mercruiser Oil Filter - MW

SKU 35-866340K01 MPN 866340K01 UPC 745061696495 MFR Mercury - Mercruiser (MW)

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Mercury 35-866340K01 Mercruiser Oil Filter

Protect your engine with the Mercury-Mercruiser 35-866340K01 oil filter: an OEM-grade component. Its advanced filtration captures particles as small as 1/1000th of an inch, keeping oil clean and flowing freely. Designed to match Mercury-Mercruiser specs, it maintains proper oil pressure while reducing wear on critical engine parts. Ideal for routine maintenance, this high-efficiency filter helps extend engine life and supports smoother operation in marine conditions. Whether you're prepping for the season or doing regular upkeep, it’s a must-have for anyone serious about preserving their engine's health.

Application:

  • Fits all MCM/MIE GM engines, except V-6 models that have the oil filter mounted on the engine block
  • Mercruiser In-Line 4- & 6- Cylinder Engines
  • Mercruiser GM V8 Engines
  • Mercruiser V6 & V8 Engines w/ Remote Oil Filter
  • Fits 4.5L and 6.2L Mercury engine

Interchangeable Sierra:


Mercury Oil Filter Installation Instructions

  1. Unscrew old filter and clean mounting base. Be sure old gasket is removed from mounting base
  2. Apply a thin coat of oil to filter gasket. Make sure the gasket is seated properly in base of the filter
  3. Screw on until the gasket contacts the base. Tighten 1 - 1-1/4 turn
  4. Use an acceptable filter wrench if necessary. Do NOT exceed 1 - 1-1/4 turn
  5. Refill crank case and run the engine while checking for leaks
  6. Check oil level

WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov

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